body{
    width: 1425px;
    overflow-x: hidden;
}
header{
    height: 64px;
    background-color: #000;
    color: palevioletred;
}
.logo{
    margin-left: 12px;
    height: 64px;
    border-radius: 2px;
}
a {
    text-decoration: none;

}
ul.left{
    display: flex;
    justify-content: space-between;
    width: 1200px;
    margin-left: 65px;
    margin-top: -40px;
    list-style-type: none;
}
.banner{
    margin-top: 20px;
    /*width: 1200px;*/
}
.banner img{
    max-width: 1425px;
    min-width: 1425px;
    margin-top: 20px;
}